That’s an impossible question to answer as we don’t know what the 60m means. Is it 6.80 or 6.89. Do you have a great start and average finish (meaning top speed is poor, or is the acceleration even (meaning that speed endurance is poor). It may be a mechanics issue, as you may be loosing form. We need a lot more info. Start filling in the blanks for people.
Ok- I saw the post on stepping over- it’s a top speed issue, most likely associated with technique (you’re probably over-pushing). Now we need the exact 60 time.
As you are already falling behind after a great start, I suspect you’re pushing in your stride instead of stepping over, concentrating on form. Sprinting speed is based on rythem and the ability to repeat a stride pattern efficiently- not based on how much force you can apply on one step.